Subject matter and scope
Article 1
1. This Regulation lays down detailed rules to ensure the consistent implementation of a fair use policy that roaming providers may apply to the consumption of regulated retail roaming services provided at the applicable domestic retail price in accordance with Article 6b of Regulation (EU) No 531/2012. 2. It also lays down detailed rules on: (a) roaming providers' applications for authorisation to apply a roaming surcharge filed pursuant to Article 6c(2) of Regulation (EU) No 531/2012 in order to ensure the sustainability of their domestic charging model; (b) the methodology to be applied by national regulatory authorities in assessing whether the roaming provider has established that it is unable to recover its costs of providing regulated roaming services, with the effect that the sustainability of its domestic charging model would be undermined.